Z86E4412VSC Equivalent & Substitute Parts

Part Overview

The Z86E4412VSC is an 8-bit microcontroller from Zilog's Z8® series, featuring 16KB OTP program memory, 236 x 8 bytes of RAM, and 32 I/O pins. Designed for embedded applications requiring low-power operation and internal oscillator support, this device operates at 12MHz with a supply voltage range of 4.6V to 5.5V. The part is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support, maintenance, and new design implementations where legacy compatibility is required.

Key Parameters

Parameter	Value
Manufacturer	Zilog
Series	Z8®
Core Processor	Z8
Core Size	8-Bit
Speed	12MHz
Program Memory Size	16KB (16K x 8)
Program Memory Type	OTP
RAM Size	236 x 8
Number of I/O	32
Voltage - Supply (Vcc/Vdd)	4.6V ~ 5.5V
Oscillator Type	Internal
Operating Temperature	0°C ~ 70°C (TA)
Package / Case	44-LCC (J-Lead)
Mounting Type	Surface Mount
Connectivity	EBI/EMI
Peripherals	POR, WDT

Substitute Part Grouping Explanation

Substitution of the Z86E4412VSC is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part Z86E4412VSG maintains identical specifications in the following key areas:

Core processor architecture (Z8)
Bit width (8-Bit)
Operating frequency (12MHz)
Program memory capacity and type (16KB OTP)
RAM configuration (236 x 8)
I/O pin count (32)
Supply voltage range (4.6V ~ 5.5V)
Internal oscillator configuration
Operating temperature range (0°C ~ 70°C)
Package form factor (44-LCC J-Lead)
Surface mount mounting type
Connectivity interface (EBI/EMI)
Peripheral set (POR, WDT)

These parameters define the functional and physical compatibility boundary for direct substitution in circuit designs and PCB layouts.

Parameter Comparison

Parameter	Z86E4412VSC (Main)	Z86E4412VSG (Substitute)
Manufacturer	Zilog	Zilog
Series	Z8®	Z8®
Core Processor	Z8	Z8
Core Size	8-Bit	8-Bit
Speed	12MHz	12MHz
Program Memory Size	16KB (16K x 8)	16KB (16K x 8)
Program Memory Type	OTP	OTP
RAM Size	236 x 8	236 x 8
Number of I/O	32	32
Voltage - Supply (Vcc/Vdd)	4.6V ~ 5.5V	4.6V ~ 5.5V
Oscillator Type	Internal	Internal
Operating Temperature	0°C ~ 70°C (TA)	0°C ~ 70°C (TA)
Package / Case	44-LCC (J-Lead)	44-LCC (J-Lead)
Mounting Type	Surface Mount	Surface Mount
Connectivity	EBI/EMI	EBI/EMI
Peripherals	POR, WDT	POR, WDT
Product Status	Obsolete	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	3 (168 Hours)	3 (168 Hours)
REACH Status	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

The Z86E4412VSG is the direct functional equivalent of the Z86E4412VSC. Both parts are identical in electrical performance, memory configuration, I/O capability, and physical packaging. The primary distinction is product lifecycle status: the Z86E4412VSC is obsolete, while the Z86E4412VSG maintains active production status.

For new designs or system replacements, the Z86E4412VSG is the appropriate selection. This part carries ROHS3 compliance certification, meeting current environmental and regulatory requirements, whereas the Z86E4412VSC does not. Both parts maintain identical REACH and ECCN classifications.

Inventory availability differs between the two variants. The Z86E4412VSG is available in tube packaging with 725 units in stock, while the Z86E4412VSC is available in 1044 units. For applications requiring immediate component procurement, both options are currently available through distribution channels.

Frequently Asked Questions (FAQ)

Q: Can Z86E4412VSG be used as a direct replacement for Z86E4412VSC in existing designs?

A: Yes. Both parts are electrically and mechanically identical. No circuit modifications, PCB layout changes, or firmware adjustments are required for substitution.

Q: What is the difference between these two part numbers?

A: The parts are functionally equivalent. The Z86E4412VSG is the active production variant with ROHS3 compliance, while the Z86E4412VSC is the obsolete variant without RoHS certification. Packaging differs: Z86E4412VSG ships in tubes, while Z86E4412VSC packaging is unspecified.

Q: Are there any compatibility concerns with the 44-LCC package?

A: No. Both parts use identical 44-LCC (J-Lead) surface mount packaging. PCB footprints, solder reflow profiles, and assembly processes are interchangeable.

Q: Do these parts require different supply voltage configurations?

A: No. Both parts operate across the identical supply voltage range of 4.6V to 5.5V. Power supply design and decoupling requirements remain unchanged.

Q: What is the significance of the RoHS compliance difference?

A: The Z86E4412VSG meets ROHS3 environmental standards, making it suitable for applications subject to RoHS regulations. The Z86E4412VSC does not carry this certification. For new designs or regulated applications, Z86E4412VSG is the appropriate choice.

Q: Are the oscillator specifications identical?

A: Yes. Both parts feature internal oscillators operating at 12MHz. External oscillator components are not required for either variant.

Q: Do these parts have the same peripheral set?

A: Yes. Both include Power-On Reset (POR) and Watchdog Timer (WDT) peripherals with identical functionality and configuration options.

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